How much leave-in mask should you use?
A handy dosage guide for every hair type, density, and length. Read More
/ video

Trichologist Angela Onuoha explains what causes daily hair damage

Trichologist Angela Onuoha breaks down what causes daily hair damage, and how these culprits cause hair breakage, frizz, and dull color. The soluti... Read More
/ curly coily care

PRO Tips to Smooth + Soften Curly + Coily Hair During Services

Our guide to adding conditioning protection to your service routine. Read More
/ build your business

How to Talk To Your Clients About DAMAGE SHIELD protective conditioner

Discover how to educate + retail weightless conditioning protection to every client. Read More
/ products + routines

When Should I Use K18 Conditioner vs. Mask?

Get the guide to repairing and protecting every client’s hair. Read More
/ hair science

The Science of Hair Slip

Learn about the slippery ingredients preventing mechanical damage, and how we use biotech to avoid buildup. Read More
/ Future Now

How Styles 4 Kidz Nurtures Confidence Through Family Haircare

Learn how our Future Now Initiative partner, Styles 4 Kidz, empowers children through hair education for foster, transracial adoptive, and biracial... Read More
contributors
Biochemist
Karl Schmieder

Karl is a biochemist + the CEO of MessagingLab, a company that works with other Scientists to help them tell their...

Scientist
Heleen Kibbelaar

Heleen holds a bachelor's and master's degree in (physical) chemistry from the University of Amsterdam and Utrecht University in the Netherlands....

Colorist
Aura Friedman

You name ‘em, Aura has colored their hair. From celebrities like Lady Gaga, magazines like Teen Vogue, and the...

Salon Owner
Christine Thompson

As a professional colorist at Spoke & Weal in Los Angeles, Christine specializes in corrective color, color change, and working...

Colorist
Linh Phan

Linh Phan, or as his loyal following calls him, BESCENE is an international educator, salon owner + CEO. Sharing his trend-spotting...

Scientist
Esther Olu

Esther Olu is an R&D formulation scientist, esthetician, educator, science communicator who is a passionate advocate for dispelling misinformation within the...